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		<h1>第五章</h1>
		
		<a href="1.html"><h2>例5.3</h2></a>
		
		<a href="2.html"><h2>例5.4</h2></a>
		
		<a href="3.html"><h2>例5.5</h2></a>
		
		<a href="4.html"><h2>例5.6</h2></a>
		
		<a href="5.html"><h2>例5.7</h2></a>
		
		<a href="6.html"><h2>例5.8</h2></a>
		
		<a href="7.html"><h2>例5.9</h2></a>
		
		<a href="8.html"><h2>例5.10</h2></a>
		
		<a href="9.html"><h2>例5.11</h2></a>
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